Hydroxyphenyl-1,3,5-triazines containing sulfonic acid groups and their preparation



United States Patent Officc 3,444,164 Patented May 13, 1969 US. Cl. 260-248 9 Claims ABSTRACT OF THE DISCLOSURE New aryl-1,3,5-triazine compounds are provided which are represented by the formula in which A represents an alkylene group and M a hydrogen ion, an ammonium ion or a cation of a metal of group 1a, 2a, 3 or 4b, or of the first period of the transition metals of the Periodic Table or of manganese, copper or chromium, and n indicates the valency of the cation.

The compounds of this invention are especially useful as stabilizing agents for protecting organic materials from the harmful effects of ultraviolet radiation.

The present invention provides new hydroxyphenyl- 1,3,5-triazines containing sulphonic acid groups built in in the form of alkylsulfonic acid groups, as well as processes for their manufacture and use. These new triazine derivatives may be looked upon quite generally as aryl- 1,3,5-triazines containing sulphonic acid groups, corresponding to the formula i Z2G\ /C- 30--A1-SO3(M;Jl N n in which Z and Z each represents a benzene residue which may be substituted by halogen atoms, alkyl, 'alkoxy, hydroxyl groups or at most one phenyl group or a residue of the formula in which A represents an alkylene group and M a hydrogen ion, an ammonium ion or a cation of a metal of group 1a, 2a, 3 or 4b, or of the first period of the transition metals of the Periodic Table or of manganese, copper or chromium, and n indicates the valency of the cation.

For most practical uses there are specially suitable phenyl-1,3,5-triazine derivatives that contain at most two alkylsulfonic acid groups and correspond to the formula where Z represents a benzene residue which may be substituted by a halogen atom, an alkyl, alkoxy or at most one phenyl group, 2, is a benzene residue 2;; or a residue of the formula Gamma, 1

chromium, or of the first period of the transition metals of the Periodic Table, and It indicates the valency of the cation.

Within the scope of the above definition lower alkylene groups are above all those which contain 3 or 4 carbon atoms; preferred among the metal cations referred to above are apart from the hydrogen and ammonium ion the following which are distinguished by a similar behaviour.

In group 1a: potassium and sodium,

In group 2a: magnesium, calcium, barium,

In group 2b: zinc,

In group 3: aluminium.

In group 4b, tin, lead,

In the first period of the transition metals: iron, cobalt, nickel.

Of special importance among the products of this invention are the aryl-l,3,5triazines which contain alkylsulfonic acid groups and correspond to the formula in which the residues R are hydrogen atoms, alkyl groups with 1 to 4 carbon atoms, alkoxy groups with 1 to 4 carbon atoms or chlorine atoms; m'=1 or 2 and indicates that the individual benzene nucleus may contain 1 or 2 substituents R p=3 or 4; M represents a cation from the series hydrogen, ammonium, alkali metal, alkaline earth metal, zinc, lead, nickel, copper, potassium or cobalt ion, and n indicates the valency of the cation. Thus, as can be seen, there are particularly valuable those aryl- 1,3,5-triazine derivatives whose molecule contains a single alkylsulfonic acid group. The term lower alkyl and alkoxy group in this connection refers to those groups which contain 1 to 6 carbon atoms.

A characteristic group of compounds corresponds to the formula lead, nickel or cobalt ion, and It indicates the valency of the cation.

3 The above-defined compounds of the Formula 1 are surprisingly obtained in a very advantageous manner when the corresponding hydroxyphenyltriazines, thus for instance the compounds of the formula are subjected to an additive reaction with alkanesultones of the formula groups of the formula HO OH I i H with an alkanesultone of the Formula 612 or of the formula In a very similar manner the practically more valuable compounds of the Formula 2 containing at most two alkylsulfonic acid groups are accessible by adding 1 or 2 mols of an alkanesultone of the Formula 6b or preferably of the Formula 8 on to a hydroxyphenyl-1,3,5-

or, based on the most important representative of this type, on to a hydroxyphenyltriazine of the formula whereby compounds are obtained that correspond to the formula Of special importance is the addition of alkanesultones on to hydroxyphenyl-l,3,5-triazines in the case of the addition of only one mol of alkanesultonefor example according to Formula 80n to hydroxyphenyl-1,3,5- triazines, containing a single hydroxyl group in paraposition relatively to the bond with the triazine ring, of the formula ZIa on l i 23-0 CQ-OH Alkanesultones particularly suitable for use in the present process are those of the formula where n=3 'or 4, that is to say 1,3-propanesultone or 1,4- butanesultone. Thus, compounds of the Formula 3 or 4 are obtained in an elegant manner by adding these sultones on to hydroxyphenyl-l,3,5-triazines of the formula (R1) in @a (Rom N such, for example as 2,4-(phenyl)-6-(2',4'-dihydroxyphenyl) -1,3 ,5 -triazine, 2,4-(2,4'-dimethylphenyl -6- (2',4'- dihydroxyphenyl)-1,3,5-triazine, 2,4-(4'-chlorophenyl)-6- (2',4'-dihydroxyphenyl)-l,3,5-triazine, 2,4'-(4'-methoxyphenyl)-6-(2,4-dihydroxyphenyl)-1,3,5-triazine.

The addition of the alkanesultones defined above on to the hydroxyphenyl-1,3,5-triazines is advantageously carried out in an organic solvent which, of course, must be chemically inert towards the reactants under the reaction conditions and must be capable of dissolving at least the alkanesultone. Such solvents are, for example, lower aliphatic monohydric alcohols such as methanol, ethanol or butanol, or ethylene-glycol monomethyl ethers, aliphatic ketones such as acetone or methylethylketone, also dioxane and dimethylsulphoxide.

The reaction is advantageously carried out in the presence of a base. Such bases may be of inorganic nature, for example alkali or alkaline earth metal hydroxides (KOH, NaOH, Ca(OH) alkali metal carbonates (K CO Na CO or alkali metal alcoholates (sodium or potassium alcoholate) or of organic nature, for example pyridine bases, ion exchange resins, or the like. The amount of base used advantageously equals the equivalent quantity needed to open the sultone ring, though if desired or required a small excess of base is permissible. The reaction temperature may vary from about 10 C. to the boiling point of the reaction mixture, and is advantageously within the range from 20 to C. The quantity of sultone to be used for the reaction corresponds normally to the quantity equivalent to at least the number of hydroxyl groups to be reacted, but an excess of sultone is basically not objectionable.

The sulfonates primarily obtained by the reaction, in most cases alkanesulfonates, may either be converted into the free sulphonic acids-for example by means of ion exchange resinsor directly or via the free acid with various water-soluble metal salts into salts of the kind referred to above.

The new hydroxyphenyl-1,3,5-triazines containing alkylsulfonic acid groups may be used according to this invention to stabilize a variety of organic materials against the harmful etfects of light, especially ultraviolet radiation, and heat.

Of special importance is the fact that, more especially when salts of alkaline earth metals or heavy metals of the indicated kind are used, a combined protection can be achieved, namely in the first place protection against ultraviolet radiation and side by side with it substantial protection against heat.

By virtue of the solubility in water of the new compounds of the Formulae 1, 2 and 3 in the form of the free sulphonic acids or of their ammonium or alkali metal salts, a considerable choice of further, partly even preferred, spheres of applications becomes available. Thus, the stabilizers may be used in cosmetics, for stabilizing fibrous substrates (that is to say both in the textile and the nontextile sectors), in the paper and cardboard sectors, for phototechnical purposes, and in the lacquer and paint sector (latices, dispersion dyestuffs and the like).

Concerning the stabilizing effect against ultraviolet radiation compared with that of the known nuclear-sulphonated benzophenones, there may be specially mentioned a substantially higher absorptive action, a broader absorption region (A is nearer to the visible region of light) and the substantial absence of colour in the alkaline region.

Quite generally, it is possible with the compounds of the Formula 1 according to this invention to stabilize and protect in principle all organic materials that are damaged or destroyed in any way by the effect of ultraviolet rays. However, such damage due to the same cause, namely ultra-violet rays, may have widely disparate results, for example colour shifts (yellowing, bleaching), change in light permeability, change in the mechanical properties (embrittlement, fissuring, tear strength, bending strength, abrasion resistance, elasticity, ageing), triggering of undesired chemical reactions (decomposition of sensitive chemical substances, for example medicaments), photochemically induced rearrangements, oxidation or the like (for example oxidation of oils containing unsaturated fatty acids), the causing of burns and irritations (for example on human skin) and the like.

Accordingly, the organic materials to be protected may belong to a wide variety of types and may be present in the most diversified stages of processing and physical states, all of them having the common property of being sensitive to untraviolet radiation.

Organic materials of this kind may be of a high molecular or low-molecular nature.

As high-molecular and low-molecular substances that can be protected or stabilized by the present process there may be mentioned, for example, without any limitation thereto: Organic natural substances such as are used for pharmaceutical purposes, dyestufis sensitive to ultraviolet rays, compounds which as victuals or in victuals are decomposed by the action of light (unsaturated fatty acids in oils) and the like.

As examples of high-molecular organic substances there may be mentioned.

I. Synthetic organic materials of high-molecular weight such as:

(a) Polymerization products based on organic compounds containing at least one polymerizable carbon-tocarbon double bond, that is to say their homopolymers or copolymers as well as their aftertreating products, for example crosslinking, grafting or decomposition products, diluted polymers, modification products obtained by modifying reactive groupings in the polymer molecule and the like, for example polymers based on cap-unsaturated carboxylic acids (for example acrylates, acrylamides, acrylonitrile), of olefinic hydrocarbons, for example a-olefins, ethlyene, propylene or dienes, that is to say also rubbers and rubberlike polymers (also so-called ABS polymers), polymers based on vinyl and vinylidene componds (for example styrene, vinyl esters, vinychloride, vinyl alcohol), of halogenated hydrocarbons, of unsaturated aldehydes and ketones, allyl componds and the like;

(b) Other polymerization products obtainable, for example, by ring opening, for instance polyamides of the polycaprolactam type, also formaldehyde polymers, or polymers accessible by polyaddition or polycondensation, such as polyethers, polythioethers, polyacetals, thioplasts;

(c) Polycondensation products or precondensates based on bifunctional or polyfunctional compounds containing condensible groups, their homocondensates and cocondensates as well as their aftertreatment products, such, for example as polyesters [saturated (e.g., polyethylene terephthalate) or unsaturated (e.g., maleic acid-dialcohol polycondensates and their crosslinked products with copolymerizable vinyl monomers), linear or branched (also those based on polyhydric alcohols, e.g., alkyd resins)], polyamides (e.g., hexamethylenediamine adiapate), maleinate resins, melamine resins, phenolic resins (e.g., novolaks), aniline resins, furan resins, carbamide resins and their precondensates and similarly constituted products; polycarbonates, silicone resins and the like;

(d) Polyadducts, such as polyurethanes (crosslinked and not crosslinked); epoxy resins.

II. Semisynthetic organic materials, for example cellulose esters and mixed esters (cellulose acetate or propionate), nitrocellulose, cellulose ethers, regenerated cellulose (viscose rayon, cuprammonium cellulose) or their aftertreatment products; casein synthetics.

III. Natural organic materials of animal or vetetable origin, for example those based on cellulose or proteins such as wool, cotton, silk, bast, jute, hemp, pelts and hairs, leathers, finely divided wood pulp, natural resins (such as colophony, especially lacquer resins), gelatin, glues, also rubber, gutta percha, balata and their aftertreatment and modification products, degradation products, products accessible by modification or reactive groups.

The organic materials concerned may be at widely differing stages of their processing (raw materials, semifinished products or finished products) and physical states. They may be in the form of products shaped in a wide variety of ways, that is to say, for example, as predominantly three-dimensional objects such as sections, vessels or components of a great variety, chips or granules, foamed products; predominantly two-dimensional materials such as films, foils, lacquers, impregnations or coatings or predominantly undimensional materials such as filaments, fibres, flocks, bristles or wires.

The said materials may also be in unshaped states in a wide variety of homogeneous or inhomogeneous forms of distribution and physical states, for example in the form of powders, solutions, normal and reversed emulsions (creams), dispersions, latices, sols, gels, putties, waxes, adhesives or pore fillers, and the like.

Fibrous materials may be used in a wide variety of processing forms, for example as textile threads, yarns, fibre fleeces, padding, flocculated materials or as textile fabrics or textile laminates, knitwear, papers, cardboards and the like.

The new stabilizers may also be used, for example, as follows:

(a) In cosmetics, such as perfumes, dyed or undyed soaps and bath salts, skin and face creams, powders, repellants and especially sunburn oils and creams;

(b) In admixture with dyestuffs or pigments or as additives to dyebaths, printing, discharge or reserve pastes, also for aftertreating dyeings, prints or discharge prints;

(c) In admixture with so-called carriers, antioxidants, other light filters, heat stabilizers or chemical bleaches;

(d) In admixture with crosslinking agents or dressing agents such as starch or synthetically produced dressings;

(e) In combination with detergents (the detergents and stabilizers may, if desired, be added separately to the washing liquors);

(f) In gelatin layers used in photography;

(g) In combination with polymeric vehicles (products of polymerization, polycondensation or polyaddition) in which the stabilizers, if desired in addition to other substances, are incorporated in the dissolved or dispersed form, for example in coating, impregnating or binding agents (solutions, dispersions, emulsions) for textiles, fleeces, papers, leathers);

(h) As additives to a wide variety of industrial products to reduce the speed of their ageing, for example as additives to glues, adhesives, paints or the like.

If the protective compounds of this invention are to be used for the treatment of textile organic materials of native or synthetic origin, for example textile fabrics, they may be applied to the substrate to be protected at any desired phase of the final processing of the latter, such as during a dressing or anticre-ase finishing or dyeing process or during any other finishing operation, by way of a fixing operation similar to a dyeing process.

Furthermore, the new stabilizers to be used according to this invention may be added to or incorporated with the materials prior to or during their shaping. Thus, for example, they may be added to the moulding or injection moulding compositions used in the manufacture of films, foils, tapes or mouldings, or they may be dissolved or dispersed or in any other way finely distributed in the spinning mass before it is spun. The protective compounds may also be added to the starting substances, reaction mixtures or intermediates used in the manufacture of fully synthetic or semisynthetic organic materials, that is to say also before or during the chemical reaction, for example in a polycondensation (including precondensates), in a polymerization (including prepolymers) or in a polyaddition.

An important sphere of application of the stabilizers to be used in the invention consists in incorporating these substances in a protective layer used to protect material placed behind it. This application may take the form of applying the ultraviolet absorber to the surface layer (of a film or of a fibre of a multidimensional shaped object). This can be done for example similar to a dyeing process, or the active substance may be embedded in a polymer (polycondensate or polyadduct) film by one of the known surface coating methods with polymeric substances, or the active substance may be dissolved in a suitable solvent and caused to diffuse or swell into the surface layer. According to another important variant the ultraviolet absorber is embedded in a self-supporting, substantially two-dimensional carrier material, for example a foil or the wall of a vessel, in order to keep ultraviolet rays away from the substance located behind it (relevant examples: shop windows, films, transparent packages, bottles).

From the foregoing it is self-evident that in addition to the protection of the substrate or carrier material containing the ultraviolet absorber also other substances contained in the substrate or carrier material are protected, for example dyestuffs, antioxidants, disinfectants, antistatics and other dressing agents, softeners and fillers.

Depending on the type of substance to be protected or stabilized, on the sensitivity or the form in which the protection and stabilization is to be imparted, the requisite amount of stabilizer may vary within wide limits, for example from about 0.01 to 10% by weight, referred to the amount of substance to be protected. For most practical purposes, however, a quantity from about 0.05 to 2% will sufiice.

Accordingly, as results from the foregoing, the process for protecting organic materials from the effect of ultraviolet radiation and heat consists in homogeneously distributing a compound of one of the Formulae 1 to 4 in the organic material to be protected, or applying it to the surface of said material or coating the material to be protected with a filter layer containing one of the compounds mentioned.

In particular, this is advantageously done by homogeneously incorporating a compound of the Formula 2, 3 or 4 in substance or in the dissolved or dispersed form in an amount of 0.05 to 2.0% by weight (referred to the weight of the material to be protected) in the organic material to be protected before the latter undergoes its final shaping.

If the substance to be used according to this invention is to be applied to the surface of the substrate to be protected, thus for instance a fibrous material (fabric), this is advantageously done by immersing the substrate to be protected in a liquor in which the triazine compound is dissolved or dispersed. Suitable relevant solvents are, for example, methanol, ethanol, acetone, ethyl acetate, methylethylketone, cyclohexanol and above all water. The substrate to be treated is left in the liquor for some time, similar to the way that dyeing processes are carried out; as a rule, 10 minutes to 24 hours at 10 to 120 C. sufiice, during which, if desired, the liquor may be agitated. Finally, the material is rinsed, if necessary washed, and dried.

Unless otherwise indicated, parts and percentages in the following examples are by weight. The melting points are uncorrected.

EXAMPLE 1 5.7 parts of solid potassium hydroxide and 40' parts of 2,4-di-(2',4'-methylphenyl) 6 (2',4',-dihydroxyphenyl)- 1,3,5-triazine [prepared according to French Patent 1,379,138] are dissolved in 8 00 parts of acetone at 35 C. Within A; hour a solution of 12.2 parts of propanesultone in 120 parts of acetone is dropped in. The resulting suspension is then stirred for 2 hours at 35 C., then for 2 hours at 45 C. and finally refluxed for 1 8 hours. The whole is cooled with ice, the resulting precipitate is suctioned off and rinsed with 200 parts of acetone and dried, to yield 50 to 55 parts of the compound of the formula which, after having been recrystallized from dimethylformamide and alcohol of strength, melts above 330 C; and-reveals the following analytical data.

Calculated for C H O N KS- /zH O: C, 59.39; H, 5.17; N, 7.41; S, 5.66; K, 6.91%. Found: C, 59.49; H, 5.24; N, 7.25; S, 5.62; K, 7.10%.

When potassium hydroxide is replaced by an equivalent quantity of sodium hydroxide, the corresponding sodium compound is obtained.

An ion exchange reaction with a dilute aqueous solution of the compound of the Formula 1 6 on a cation exchange resin in the H+-form at 60 C. furnishes the free acid of the formula HaC OH EXAMPLE 2 N if mc-Q-h o --0 moment-sotwhich slightly sinters at 230 C. and does not melt up to 320 C. After one recrystallization from aqueous dimethylformamide, the compound reveals the following analytical data.

Calculated for C5 H5 O10N5S3Pb'v/2H OZ C, H, 4.68; N, 6.60; S, 5.04%. Found: C, 52.97; H, 4.76; N, 6.65; S, 5.10%.

When the parts of Pb(NO are replaced by 16 parts of BaCl -2H O and the reaction is carried out otherwise in exactly identical manner, there are obtained 5.1 parts of the compound of the formula which likewise does not melt below 320 C.

Analysis.Calculated for C H O N S Ba-1 /2H O: C, 55.98; H, 4.94; N, 6.99; S, 5.33%. Found: C, 56.03; H, 4.94; N, 7.03; S, 5.44%.

When the 20 parts of Pb(NO are replaced by 18 parts of NiCl -6H O, an analogous reaction (digesting the precipitate for 2 hours at 90 C. makes it easier to suction-filter it) furnishes 5.3 parts of the compound of the formula which sinters at 230 C. and melts at 290 to 320 C. with decomposition.

Recrystallization from ch1orobenzene+ gasoline containing a small quantity of alcohol yields a product which reveals the following analytical data.

Calculated for C H O N S Ni-1 AH 0: C, 59.92; H,

5.30; N, 7.48; S, 5.71%. Found: C, 59.90; H, 5.49; N,

When the 20 parts of Pb=(NO are replaced by 25 parts of CoSO -7H O and the reaction is carried out in identical manner there are obtained (after digesting the 3,444,164 1 l 12 precipitate for 2 hours at 90 C.) 5.0 parts of the com- 5.41; N, 7.27; S, 5.55%. Found: 58.33; H, 5.52; N, 7.17.; pound of the formula S, 5.77%.

When the 20 parts of 'Pb(NO are replaced by 12 parts of CaCI an analogous reaction furnishes 5.6 parts of the compound of the formula which melts at 295 to 300 C. and after recrystallization which does not melt below 310 C. and after recrystalfrom chlorobenzene+alcohol/gasoline reveals the followlization from dimethylformamide+water (3:1)/acetone ing analytical data. reveals the following analytical data.

Calculated for C H O N S Co-3H O: C, 58.50; H, Calculated for C H O N,S Ca-lH O: C, 61.40; H, 5.44; N, 7.31; S, 5.57%. Found: C, 58.47; H, 5. 59; N, 5.34; N, 7.66; S, 5.86; Ca, 3.65%. Found: C, 61.46; H, 7.34; S, 5.79%. 5.49; N, 7.74; S, 6.06; Ca, 3.64%.

When the parts of Pb(NO are replaced by 15 When the 20 parts of Pb( NO) are replaced by 20 parts of ZnCl and the reaction is carried out in analogous parts of CuCl;,, an analogous reaction furnishes 4.9 parts manner there are obtained (after stirring the batch for of the compound of the formula (3 CHBKHQO H 0 a i I? E mc-Q-c c-Q-o-omomom-sm- 2 20 hours at 20 C.) 5.4 parts of the compound of the which melts above 188 C. with decomposition and after formula recrystallization from chlorobenzene-l-gasoline reveals the following analytical data.

which melts at 250 to 256 C. with decomposition and after recrystallization from chlorobenzene-l-hexane re- Calculated for C H O N S Cu-2bH O: C, 58.75; H, veals the following analytical data. 5.33; N, 7.33; S, 5.59%. Found: C, 58.83; H, 5.46; N,

Calculated for C H O N S Zn-3H O: C, 58.16; H, 7.18; S, 5.84%.

3,444,164 13 14 When the 20 parts of 'Pb(NO are replaced by 25 cohol and dried at 120 C. It melts above 300 C. and parts of CdCl an analogous reaction furnishes 3.5 parts reveals the following analytical data.

of the compound of the formula Calculated for C H O N SK: C, 57.47; H, 4.02; N,

ctr-211,0 c

HaC 011 I if mo-Q-o o -o-o 11.011.011.40,-

8.38; K, 7.80%. Found: 57.52; H, 4.05; N, 8.32; K,

which melts above 310 C. and after recrystallization 750%- rrom dimethylformamide+acetone+water (1:3:1) re- EXAMPLE 4 Veals the following analytical data: 16.3 parts of 2-(4-chlorophenyl)-4,6-(2,4-dihydroxy- Calculated for ss ss io s z z H, phenyl)-l,3,5-triazine and 4.7 parts of solid potassium Found? C, hydroxide are dissolved at C. in 140 parts of ethylene EXAMPLE 3 glyiolorfnonomethyllather. Agtgr cocgslingf toth2(1) C.,1ll.71 I par s propanesu no in par 0 e ene g yco When in Example 1 the 40 parts of 2,4-d1-( monomethyl ether are added. The whole is hen reacted methylphenyn'6'(2"4"d1hydrXyPheP3/1) f for 2 hours each at 20 C., 40 C. and C. and for are replaced by B? of 2,4'd1PhenY1'6' (2 3 16 hours at C., cooled, and the suspension is made l' hi P FP P E Q to B up with acetone to twice its volume. The whole is stirred glam Patent 6254007], Proceedmg Otherwlse ldenflcal for one hour in an ice bath, suctioned, rinsed with acetone and dried at C. under vacuum, to yield 26 parts of the compound of the formula C HO OH manner, there are obtained 45.3 parts of the compound of 50 the formula For purification the compound is dissolved in 300 parts of warm water and at the boil alcohol is added until the (26) whole turns turbid; it is then cooled, and 3.5 parts of an impurity are filtered off. The filtrate is concentrated to parts and precipitated with alcohol. Yield: 15 parts 55 of a hygroscopic compound which reveals the following (3 analytical data. 011 Calculated for C27H24O N3K2S Cl' /zH O (moi. weight a I 737.3): C, 44.0; H, 3.42; N, 5.70; S, 8.69; CI, 4.81%. C -OCH1CH:CH:S0:K Found: C, 44.2; H, 3.47; N, 5.65; S, 8.61; Cl, 4.71%.

30 A similar reaction with the useof 15 parts of 2- phenyl-4,6-(2',4'-dihydroxyphenyl) 1,3,5 triazine fur- WhlCh is suspended in alcohol, dissolved 1n water at the nishes 28.7 parts of the compound of the formula boil, allowed to cool, suctioned off and washed with al- HO OH melted above 300 C. For recrystallization, the compound is dissolved in water, the volume of the solution is doubled with dimethylformamide and the whole is then concentrated until a precipitate appears.

Calculated for C2P1H2O1QN3S2K2Z C, H, N, 6.06%. Found: C, 46.87; H, 3.47; N, 6.19%.

When in an analogous reaction 17.1 parts of 2-(4'- tertiary butylphenyl) 4,6-(2,4'-dihydroxyphenyl)-1,3,5- triazine are used, there are obtained 26.0 parts of the compound of the formula HO OH 16 EXAMPLE parts of 2-phenyl-4,6-(2',4'-dihydroxyphenyl)-1,3,5- triazine and a solution of 2.4 parts of potassium hydroxide in 5 parts of water are dissolved at C. in 200 parts of ethylene glycol monomethyl ether. At 10 C. a solution of 4.9 parts of propanesultone in parts of ethylene glycol monomethyl ether is added. The whole is then stirred for 4 hours at 10 C., for 14 hours at 20 C., for 6 hours at 40 C. and for 12 hours at C., 400 parts of acetone I! l xms-crnomo H, o--c o-Q-o-o memo m-souexmo HCI) are added, the batch is cooled in ice, suctioned and the filter cake is rinsed with acetone and dried, to yield 10 parts of a crude product which is dissolved in 100 parts of water. Alcohol is added to the solution at the boil until a turbidity appears; the batch is then cooled to room temperature, the precipitate formed is suctioned 01f, and the mother liquor is evaporated to dryness. The evaporation melting above 300 C.

Calculated for C28H27O11N3S2K2'1/2H20: C, 45.88, 3.85; N, 5.73; S, 8.75; K, 10.68%. Found: C, 45.69; H 4.27; N, 5.78, S, 8.61; K, 10.75%.

When in an analogous reaction 18.4 parts of 2-(4'-phenylylphenyl) 4,6 (2',4' dihydroxyphenyl) 1,3,5 triazine and 3.44 parts of sodium hydroxide are used, there are obtained 28.5 parts of the compound of the formula residue (3.1 parts) does not melt up to 300 C. and corresponds to the formula melting at 300 C.

Calculated for C H O N S Na /zH O: C, 53.08; H, 4.23; N, 5.62; S, 8.58; Na, 6.16%. Found: C, 52.93; H, 3.84; N, 5.76; S, 8.81; Na, 6.29%.

Calculated for C H N O SK- /2H O: C, 53.18; H, 3.90; N, 7.75; S, 5.91; K, 7.20%. Found: C, 53.58; H,

4.10; N, 7.71; S, 6.12; K, 6.88%.

17 EXAMPLE 6 O HO H 18 Calculated for C H O N S K: C, 49.43; H, 3.98; N, 6.41; S, 9.77; K, 5.96%. Found: C, 49.32; H, 4.04; N, 6.37; S, 9.74; K, 5.56%.

EXAMPLE 9 6.95 parts of the compound of the Formula 28 are dissolved in 400 parts of water at 70 C. The farm solution is poured over an ion exchange resin column, likewise heated at 70 C., in the H -form (16 parts of Dowex 50W," referred to the dry weight of the resin) and the column is rinsed with 100 parts of water. The eluate is evaporated to dryness in a rotary evaporator. The result- N N I N.... ..H.. o@4 ..H......N..H..

which is recrystallized from aqueous alcohol. It melts above 300 C. and reveals the following analytical data.

Calculated for CQQH3OOI5N3S3NEI3IH2O: C, H, 3.77; N, 4.91; S, 11.23; Na, 8.06%. Found: C, 41.93; H, 3.82; N, 4.77; S, 11.05; Na, 8.11%.

EXAMPLE 7 When in Example 1 the 12.2 parts of propanesultone are replaced by 13.6 parts of butanesultone and the 5.7 parts of potassium hydroxide by 4.1 parts of sodium hydroxide, an analogous reaction furnishes 38.7 parts of the compound of the formula C Ha? which, after recrystallization from aqueous alcohol, melts above 300 C. and reveals the following analytical data.

Calculated for C H O N SNa: C, 62.69 H, 5.44; N, 7.56; S, 5.77%. Found: C, 62.72; H, 5.50; N, 7.66; S, 5.53%.

EXAMPLE 8 12.8 parts of the compound of the Formula 28 are dissolved with heating in an adequate quantity of 4 N-hydrochloric acid. At the :boil a sufficiency of acetone is added to produce a turbidity; the batch is cooled in an ice bath, suctioned and the filter cake is rinsed with acetone. The suctioned-oft' product is once more recrystallized in identical manner; after having been dried at 120 C. under vacuum it melts above 255 C. with decomposition and corresponds to the formula and reveals the following analytical data.

ing residue is dried at C. under vacuum, to yield 4.9 parts of the compound of the formula 0 H0 OH Calculated for c n o N s- C, 52.50; H, 4.41; N, 6.80; S, 10.38%. Found: C, 52.47; H, 4.42; N, 6.74; S, 10.29%.

EXAMPLE 10 A film about 60 microns thick is prepared from a 10% acetonic solution of acetyl cellulose which contains, referred to acetyl cellulose, 1% of the compound of the Formula 16. The dried film reveals the following percentage values of light transmission:

Light transmission in percent Exposed for 100 hours in a Wavelength in my Unexposed iadeometer EXAMPLE 11 12.5 parts of an aqueous solution containing 0.07 part of the compound of the Formula 16 are stirred into 87.5 parts of a gelatin solution heated to 50 C. (87 parts of dry gelatin dissolved in 1000 parts of water). A specimen of the mixture is poured out over a plate of glass and dried under vacuum for 20 hours at 50 C. This procedure furnishes a completely transparent film which (referred to the dry weight) contains 1% of the compound of the Formula 16 and absorbs ultraviolet light up to about 380 my. It is no darker than a gelatin film cast without adding the compound of the Formula 16.

pound of the Formula 20 is rolled on a calender at to C. to form a foil about 0.5 mm. thick. The polyvinyl chloride foil obtained in this manner absorbs completely within the region from 280 to 370 mu. When the foil is heated for 2 hours at 170 C., less yellowing and embrittlement is observed than in a foil that does not contain the compound of the Formula 20.

Similar results are obtained when the compound of the Formula 20 is replaced by the compound of the Formula 19 or 21.

EXAMPLE l3 3 parts of the compound of the Formula 28 are dissolved in 67 parts of water, and 5 parts of propylene glycol and 25 parts of rectified alcohol are added. The resulting sunburn preparation displays a good absorptive effect against ultraviolet radiation up to the visible region of rays and thus prevents burning of the skin.

Equally good results are obtained when the compound of the Formula 28 is replaced by the compound (29) or (30).

EXAMPLE 14 parts of glycerin monostearate, 4 parts of cetyl alcohol, 1 part of sodium cetyl sulphate, 1 part of stearic acid and 5 parts of glycerin are emulsified with 75 parts of a 5% solution of the compound of the Formula 28. The resulting emulsion is very suitable for use as a nonfatty skin cream which protects the treated skin areas completely from sun rays. In a similar manner the compound of the Formula 29 or 30 may be used.

When the compound of the Formula 28 is replaced by the compound (16) or (26), dissolved in water at 75 C. to form a solution of 3% strength, a sunburn preparation is obtained which passes some of the tanning rays but protects the skin effectively from burns.

What is claimed is:

1. The aryl-l,3,5-triazine containing sulfonic acid groups, corresponding to the formula in which Z and Z each represents a benzene residue containing a substituent selected from the group consisting of hydrogen, halogen, alkyl with 1 to 4 carbon atoms, alkoxy with 1 to 4 carbon atoms, hydroxyl, phenyl and a residue of the formula Q-o-m-smum 1 in which A represents an alkylene group containing 3 to 4 carbon atoms and M a member selected from the group consisting of hydrogen, ammonium ion, a cation of a metal of group 1a, 2a, 2b, 3, 4b and of the first period of the transition metals of the Periodic Table of Elements, of manganese, copper and chromium, and n indicates the valency of the cation.

2. The phenyl-1,3,5-triazine according to claim 1, which corresponds to the formula where Z represents a benzene residue containing a substituent selected from the group consisting of hydrogen, halogen, alkyl with 1 to 4 carbon atoms, alkoxy with 1 to 4 carbon atoms and the phenyl group, Z, represents a member selected from the group consisting of a benzene residue 2;, and a residue of the formula where A represents an alkylene group containing 3 to 4 carbon atoms and M stands for a member selected from the group consisting of hydrogen, ammonium ion, a cation of a metal of groups 1a, 2a, 2b, 3, 4b, of manganese, copper, chromium and of the first period of the transition metals of the Periodic Table of Elements, and n indicates the valency of the cation.

3. The aryl-l,3,5-triazine according to claim 1 of the formula /C 011 R: N N Q4 R: N t n where R represents a member selected from the group consisting of hydrogen and an alkyl group containing 1 to 4 carbon atoms; M represents a cation selected from the group consisting of sodium, potassium, calcium, barium, zinc, lead, nickel and cobalt ion, and n indicates the valency of the cation.

5. A compound according to claim 1 and corresponding to the formula and a salt thereof with the metal cation selected from the group consisting of sodium, potassium, calcium, bari um, zinc and lead.

7. A compound of the formula 8. A compound of the formula 9. A compound of the formula References Cited UNITED STATES PATENTS 10/1942 Hentrich et a1 260-248 HENRY R. JILES, Primary Examiner.

JOHN M. FORD, Assistant Examiner.

US. Cl. X.R. 

